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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48802
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dc.creatorNajara Glenda Frota Pereirapt_BR
dc.creatorFlaviano Oliveira Silvériopt_BR
dc.creatorGevany Paulino de Pinhopt_BR
dc.date.accessioned2023-01-10T10:58:50Z-
dc.date.available2023-01-10T10:58:50Z-
dc.date.issued2019-07-29-
dc.citation.volume100pt_BR
dc.citation.issue9pt_BR
dc.citation.spage968pt_BR
dc.citation.epage980pt_BR
dc.identifier.doihttps://doi.org/10.1080/03067319.2019.1646735pt_BR
dc.identifier.issn1029-0397pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48802-
dc.description.resumoSewage sludge is a by-product obtained from sewage treatment plants (STP) that can be used to improve physical and chemical properties of the soil. However, xenobiotic compounds such as phthalates can be found in this material. Thus, the objective of this study was to optimise and validate the solid-liquid extraction with low-temperature purification (SLE-LTP) for the determination of five phthalates in sludge samples. Analyses were performed by gas chromatography coupled to the mass spectrometry (GC-MS). The SLE-LTP optimised parameters were water volume, extraction solvent, shaking mode and, freezing time. The most advantage of the proposed method is that it did not require additional clean up of the extracts with sorbents. In the best condition of extraction, recoveries of the five target analytes ranged from 76% to 119% and relative standard deviations were lower than 15%. Limits of quantification were 40 μg kg−1 for four phthalates and 80 μg kg−1 for dietylhexylphthalate (DEHP), which were about 6 to 12 times lower than maximum residue limits (MRL) established by Brazilian legislation. The validate method was applied to sewage sludge collected from six municipalities of Minas Gerais. Approximately 83% of the analyzed samples were contaminated by some phthalate, mainly DEHP with concentration ranging from 0.78 to 10.24 mg kg−1.pt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofInternational Journal of Environmental Analytical Chemistrypt_BR
dc.rightsAcesso Restritopt_BR
dc.subject.otherLodo de esgotopt_BR
dc.subject.otherXenobióticapt_BR
dc.subject.otherÉsterespt_BR
dc.titleOptimisation, validation and application of the solid-liquid extraction with low-temperature purification followed by gas chromatography-mass spectrometry for determination of phthalates in sewage sludgept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.tandfonline.com/doi/full/10.1080/03067319.2019.1646735pt_BR
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